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post #61 of 67 Old 02-26-2014, 10:16 AM
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Be careful to balance the load on the two branches of that multi-branch circuit, or you can overload the neutral wire (assuming it is a 240v circuit and you are sharing the neutral).
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post #62 of 67 Old 02-26-2014, 10:24 AM - Thread Starter
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Quote:
Originally Posted by LeBon View Post

Be careful to balance the load on the two branches of that multi-branch circuit, or you can overload the neutral wire (assuming it is a 240v circuit and you are sharing the neutral).

Thanks. It is a 240v circuit. I used a quad breaker with the two center 20s tied and two outer 20s individual. Even neater! (if you don't do this every day)

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post #63 of 67 Old 02-26-2014, 10:31 AM
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OK, you've lost me. Maybe a line diagrem would help. To me, a quad breaker means 4 20A breakers. Do I understand correctly that you have 2 regular 20A 120V circuits, and then a 240V circuit which you split at the receptable end? Are you sure you have 240V across the 2 center breakers?
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post #64 of 67 Old 02-26-2014, 10:57 AM - Thread Starter
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I'm positive, but here's a couple more pictures. I double checked before I finalized the big plan over on the DIY forum, then went to Home Depot and narrowed down the plan with what was available to best suit my box/space requirements.

I appreciate you double checking though. Things like this can be a real hazard if not done correctly!


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post #65 of 67 Old 07-17-2014, 02:37 AM
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@pdxrealtor , you've got a PM.
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post #66 of 67 Old 07-30-2014, 11:32 AM - Thread Starter
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I switched to mechanical relays at the advice of a Peavey engineer. I also went from two IPR 2 7500s to four. One amp for each sub. One channel of each amp powering one sub.

Built a custom amp rack with cooling, temp gauges, and auto climate control. It fits nicely under my screen and is very consistent in maintaining a 30-33*C temperature. Mostly sits at 32* C.

I used four 200mm fans, two intake and two exhaust. The orange box is the temp controller. It's actually a device used in HVAC, and can be found at Home Depot for under 25.00. I haven't wired up the little temp gauge yet. I've been using a temp one that I can see through the plexiglass window I installed.

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post #67 of 67 Old 07-31-2014, 09:03 AM
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One 7500 per sub? Boy, you aren't messing around!!
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